The Russian Ambassador to Turkey was shot and killed Monday in Ankara, Turkey, while he spoke at the opening ceremony of an art exhibition in the city.

Andrey Karlov was shot by the assailant (in the video below), who then shouted "Allahu akbar (God is great). Do not forget Aleppo! Do not forget Syria! Do not forget Aleppo! Do not forget Syria!" Karlov later succumed to his injuries. The shooter has not been publicly identified, but it has been reported that the threat has been "neutralized."